diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-09-24 10:31:34 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-09-24 10:31:34 +0200 |
commit | e6aa0f07cb5e81a7cbeaf3be6e2101234c2f0d30 (patch) | |
tree | 77926550ac0c31b1423bcf193a4ed0ecb7fda2c1 /drivers/media/radio/miropcm20-radio.c | |
parent | d4738792fb86600b6cb7220459d9c47e819b3580 (diff) | |
parent | 72d31053f62c4bc464c2783974926969614a8649 (diff) |
Merge commit 'v2.6.27-rc7' into x86/microcode
Diffstat (limited to 'drivers/media/radio/miropcm20-radio.c')
-rw-r--r-- | drivers/media/radio/miropcm20-radio.c | 266 |
1 files changed, 0 insertions, 266 deletions
diff --git a/drivers/media/radio/miropcm20-radio.c b/drivers/media/radio/miropcm20-radio.c deleted file mode 100644 index 7fd7ee2d32c..00000000000 --- a/drivers/media/radio/miropcm20-radio.c +++ /dev/null @@ -1,266 +0,0 @@ -/* Miro PCM20 radio driver for Linux radio support - * (c) 1998 Ruurd Reitsma <R.A.Reitsma@wbmt.tudelft.nl> - * Thanks to Norberto Pellici for the ACI device interface specification - * The API part is based on the radiotrack driver by M. Kirkwood - * This driver relies on the aci mixer (drivers/sound/aci.c) - * Look there for further info... - */ - -/* Revision history: - * - * 1998 Ruurd Reitsma <R.A.Reitsma@wbmt.tudelft.nl> - * 2000-09-05 Robert Siemer <Robert.Siemer@gmx.de> - * removed unfinished volume control (maybe adding it later again) - * use OSS-mixer; added stereo control - */ - -/* What ever you think about the ACI, version 0x07 is not very well! - * I can't get frequency, 'tuner status', 'tuner flags' or mute/mono - * conditions... Robert - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/videodev.h> -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> -#include "oss/aci.h" -#include "miropcm20-rds-core.h" - -static int radio_nr = -1; -module_param(radio_nr, int, 0); - -struct pcm20_device { - unsigned long freq; - int muted; - int stereo; -}; - - -static int pcm20_mute(struct pcm20_device *dev, unsigned char mute) -{ - dev->muted = mute; - return aci_write_cmd(ACI_SET_TUNERMUTE, mute); -} - -static int pcm20_stereo(struct pcm20_device *dev, unsigned char stereo) -{ - dev->stereo = stereo; - return aci_write_cmd(ACI_SET_TUNERMONO, !stereo); -} - -static int pcm20_setfreq(struct pcm20_device *dev, unsigned long freq) -{ - unsigned char freql; - unsigned char freqh; - - dev->freq=freq; - - freq /= 160; - if (!(aci_version==0x07 || aci_version>=0xb0)) - freq /= 10; /* I don't know exactly which version - * needs this hack */ - freql = freq & 0xff; - freqh = freq >> 8; - - aci_rds_cmd(RDS_RESET, NULL, 0); - pcm20_stereo(dev, 1); - - return aci_rw_cmd(ACI_WRITE_TUNE, freql, freqh); -} - -static int pcm20_getflags(struct pcm20_device *dev, __u32 *flags, __u16 *signal) -{ - /* okay, check for signal, stereo and rds here... */ - int i; - unsigned char buf; - - if ((i=aci_rw_cmd(ACI_READ_TUNERSTATION, -1, -1))<0) - return i; - pr_debug("check_sig: 0x%x\n", i); - if (i & 0x80) { - /* no signal from tuner */ - *flags=0; - *signal=0; - return 0; - } else - *signal=0xffff; - - if ((i=aci_rw_cmd(ACI_READ_TUNERSTEREO, -1, -1))<0) - return i; - if (i & 0x40) { - *flags=0; - } else { - /* stereo */ - *flags=VIDEO_TUNER_STEREO_ON; - /* I can't see stereo, when forced to mono */ - dev->stereo=1; - } - - if ((i=aci_rds_cmd(RDS_STATUS, &buf, 1))<0) - return i; - if (buf & 1) - /* RDS available */ - *flags|=VIDEO_TUNER_RDS_ON; - else - return 0; - - if ((i=aci_rds_cmd(RDS_RXVALUE, &buf, 1))<0) - return i; - pr_debug("rds-signal: %d\n", buf); - if (buf > 15) { - printk("miropcm20-radio: RX strengths unexpected high...\n"); - buf=15; - } - /* refine signal */ - if ((*signal=SCALE(15, 0xffff, buf))==0) - *signal = 1; - - return 0; -} - -static int pcm20_do_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, void *arg) -{ - struct video_device *dev = video_devdata(file); - struct pcm20_device *pcm20 = dev->priv; - int i; - - switch(cmd) - { - case VIDIOCGCAP: - { - struct video_capability *v = arg; - memset(v,0,sizeof(*v)); - v->type=VID_TYPE_TUNER; - strcpy(v->name, "Miro PCM20"); - v->channels=1; - v->audios=1; - return 0; - } - case VIDIOCGTUNER: - { - struct video_tuner *v = arg; - if(v->tuner) /* Only 1 tuner */ - return -EINVAL; - v->rangelow=87*16000; - v->rangehigh=108*16000; - pcm20_getflags(pcm20, &v->flags, &v->signal); - v->flags|=VIDEO_TUNER_LOW; - v->mode=VIDEO_MODE_AUTO; - strcpy(v->name, "FM"); - return 0; - } - case VIDIOCSTUNER: - { - struct video_tuner *v = arg; - if(v->tuner!=0) - return -EINVAL; - /* Only 1 tuner so no setting needed ! */ - return 0; - } - case VIDIOCGFREQ: - { - unsigned long *freq = arg; - *freq = pcm20->freq; - return 0; - } - case VIDIOCSFREQ: - { - unsigned long *freq = arg; - pcm20->freq = *freq; - i=pcm20_setfreq(pcm20, pcm20->freq); - pr_debug("First view (setfreq): 0x%x\n", i); - return i; - } - case VIDIOCGAUDIO: - { - struct video_audio *v = arg; - memset(v,0, sizeof(*v)); - v->flags=VIDEO_AUDIO_MUTABLE; - if (pcm20->muted) - v->flags|=VIDEO_AUDIO_MUTE; - v->mode=VIDEO_SOUND_STEREO; - if (pcm20->stereo) - v->mode|=VIDEO_SOUND_MONO; - /* v->step=2048; */ - strcpy(v->name, "Radio"); - return 0; - } - case VIDIOCSAUDIO: - { - struct video_audio *v = arg; - if(v->audio) - return -EINVAL; - - pcm20_mute(pcm20, !!(v->flags&VIDEO_AUDIO_MUTE)); - if(v->flags&VIDEO_SOUND_MONO) - pcm20_stereo(pcm20, 0); - if(v->flags&VIDEO_SOUND_STEREO) - pcm20_stereo(pcm20, 1); - - return 0; - } - default: - return -ENOIOCTLCMD; - } -} - -static int pcm20_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - return video_usercopy(inode, file, cmd, arg, pcm20_do_ioctl); -} - -static struct pcm20_device pcm20_unit = { - .freq = 87*16000, - .muted = 1, -}; - -static const struct file_operations pcm20_fops = { - .owner = THIS_MODULE, - .open = video_exclusive_open, - .release = video_exclusive_release, - .ioctl = pcm20_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = v4l_compat_ioctl32, -#endif - .llseek = no_llseek, -}; - -static struct video_device pcm20_radio = { - .name = "Miro PCM 20 radio", - .fops = &pcm20_fops, - .priv = &pcm20_unit -}; - -static int __init pcm20_init(void) -{ - if(video_register_device(&pcm20_radio, VFL_TYPE_RADIO, radio_nr)==-1) - goto video_register_device; - - if(attach_aci_rds()<0) - goto attach_aci_rds; - - printk(KERN_INFO "Miro PCM20 radio card driver.\n"); - - return 0; - - attach_aci_rds: - video_unregister_device(&pcm20_radio); - video_register_device: - return -EINVAL; -} - -MODULE_AUTHOR("Ruurd Reitsma"); -MODULE_DESCRIPTION("A driver for the Miro PCM20 radio card."); -MODULE_LICENSE("GPL"); - -static void __exit pcm20_cleanup(void) -{ - unload_aci_rds(); - video_unregister_device(&pcm20_radio); -} - -module_init(pcm20_init); -module_exit(pcm20_cleanup); |